"The map is labeled across the lower margin from left to right (1)
The
Edinburgh Geographical Institute (2) J.G. Bartholomew. The map legend
in
the lower left map area shows (1) Eranian Languages in pink shading (2)
Pisacha Languages in brown shading (3) Midland Indo-Aryan Languages in
yellow shading (4) Outer Indo-Aryan Languages in blue shading and (5)
Intermediate
Indo-Aryan Languages in green shading. It is then noted “NOTE: The
Shading
of the Intermediate Languages (Green) is intended to illustrate
approximately
the Local Influence of Midland and of Outer Languages."